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Formation of colloidal alloy semiconductor CdTeSe magic-size clusters at room temperature
Gao, D; Hao, XY; Rowell, N; Kreouzis, T; Lockwood, DJ; Han, S; Fan, HS; Zhang, H; Zhang, CC; Jiang, YN; Zeng, JR; Zhang, M; Yu, K
2019
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume10Issue:-Pages:
Subtype期刊论文
AbstractAlloy semiconductor magic-size clusters (MSCs) have received scant attention and little is known about their formation pathway. Here, we report the synthesis of alloy CdTeSe MSC-399 (exhibiting sharp absorption peaking at 399 nm) at room temperature, together with an explanation of its formation pathway. The evolution of MSC-399 at room temperature is detected when two prenucleation-stage samples of binary CdTe and CdSe are mixed, which are transparent in optical absorption. For a reaction consisting of Cd, Te, and Se precursors, no MSC-399 is observed. Synchrotron-based in-situ small angle X-ray scattering (SAXS) suggests that the sizes of the two samples and their mixture are similar. We argue that substitution reactions take place after the two binary samples are mixed, which result in the formation of MSC-399 from its precursor compound (PC-399). The present study provides a room-temperature avenue to engineering alloy MSCs and an in-depth understanding of their probable formation pathway.
KeywordEXCHANGE REACTIONS CDSE NANOCRYSTALS NUCLEATION NANOPARTICLES NANOCLUSTERS MONODISPERSE ABSORPTION PHOSPHINES CONVERSION
DOI10.1038/s41467-019-09705-w
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31640
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Sichuan, Peoples R China;
2.Natl Res Council Canada, Metrol Res Ctr, Ottawa, ON K1A 0R6, Canada;
3.Queen Mary Univ London, Sch Phys & Astron, London E1 4NS, England;
4.Sichuan Univ, Sch Phys Sci & Technol, Chengdu 610065, Sichuan, Peoples R China;
5.Sichuan Univ, Engn Res Ctr Biomat, Chengdu 610065, Sichuan, Peoples R China;
6.Sichuan Univ, Analyt & Testing Ctr, Chengdu 610065, Sichuan, Peoples R China;
7.Changchun Univ Chinese Med, Jilin Ginseng Acad, Changchun 130117, Jilin, Peoples R China;
8.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Adv Res Inst, Shanghai 201204, Peoples R China;
9.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China;
10.Sichuan Univ, State Key Lab Polymer Mat Engn, Chengdu 610065, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Gao, D,Hao, XY,Rowell, N,et al. Formation of colloidal alloy semiconductor CdTeSe magic-size clusters at room temperature[J]. NATURE COMMUNICATIONS,2019,10(-):—.
APA Gao, D.,Hao, XY.,Rowell, N.,Kreouzis, T.,Lockwood, DJ.,...&Yu, K.(2019).Formation of colloidal alloy semiconductor CdTeSe magic-size clusters at room temperature.NATURE COMMUNICATIONS,10(-),—.
MLA Gao, D,et al."Formation of colloidal alloy semiconductor CdTeSe magic-size clusters at room temperature".NATURE COMMUNICATIONS 10.-(2019):—.
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